Title :
M-ary runlength limited codes for high density optical recording
Author :
McLaughlin, Steven W. ; Earman, Allen M. ; Gerpheide, John M.
Author_Institution :
Dept. of Electr. Eng., Rochester Inst. of Technol., NY, USA
fDate :
27 Jun-1 Jul 1994
Abstract :
New optical recording channels have been developed that support unsaturated, M-ary (M⩾3) signaling. In this paper we consider the analysis and design of M-ary runlength limited codes for such channels. These codes are designed using the state splitting algorithm and have improved minimum squared Euclidean distance over an ordinary Adler-Coppersmith-Hassner code. Comparisons are made with Ungerboeck-style amplitude modulation trellis codes with comparable complexity and in some cases the new codes achieve a coding gain of over 2 dB
Keywords :
optical storage; runlength codes; telecommunication channels; M-ary runlength limited codes; Ungerboeck codes; amplitude modulation trellis codes; coding gain; complexity; high density optical recording; minimum squared Euclidean distance; optical recording channels; state splitting algorithm; unsaturated signaling; Algorithm design and analysis; Amplitude modulation; Convolutional codes; Euclidean distance; Interference constraints; Intersymbol interference; Optical recording; Optical saturation; Saturation magnetization; Timing;
Conference_Titel :
Information Theory, 1994. Proceedings., 1994 IEEE International Symposium on
Conference_Location :
Trondheim
Print_ISBN :
0-7803-2015-8
DOI :
10.1109/ISIT.1994.394829
